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- Question
A communications device that combines transmissions from several 1/ O devices into one line is a:
Options- A. concentrator
- B. modifier
- C. multiplexer
- D. full-duplex line
- E. None of the above
- Correct Answer
- multiplexer
- 1. The MAC (Media Access Control) address of the network card is used in both Ethernet and Token-Ring networks and is essential for communication. What does MAC provide?
Options- A. A logical address that identifies the workstation
- B. A physical address that is randomly assigned each time the computer is started
- C. A physical address that is assigned by the manufacturer
- D. The logical domain address for the workstation
- E. An alias for the computer name Discuss
- 2. A WATS arrangement
Options- A. is always less expensive than flat-rate service
- B. is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
- C. is less expensive than flat-rate service only when the number of calls is small and the duration of each is long
- D. is never less expensive than flat-rate service
- E. None of the above Discuss
- 3. Alice is setting up a small network in her home so that she can study for her MCSE exams. She doesn't have a lot of money to spend on hardware, so she wants to use a network topology that requires the least amount of hardware possible. Which topology should she select?
Options- A. Star
- B. Right
- C. Token-Ring
- D. Ethernet
- E. Bus Discuss
- 4. The X.25 standard specifies a
Options- A. technique for start-stop data
- B. technique for dial access
- C. DTE/DCE interface
- D. data bit rate
- E. None of the above Discuss
- 5. Which of the following summation operation is performed on the bits to check an error-detecting code?
Options- A. Codec
- B. Coder-decoder
- C. Checksum
- D. Attenuation
- E. None of the above Discuss
- 6. The standard suit of protocols used by the Internet, intranets, extranets, and some other networks.
Options- A. TCP/IP
- B. Protocol
- C. Open Systems
- D. Internetwork processor Discuss
- 7. In geosynchronous orbit, satellite
Options- A. remains in a fixed position so that as earth rotates, it can fully cover the earth
- B. remains in a fixed position related to points on earth
- C. moves faster than the earth's rotation so that it can cover larger portion of earth.
- D. moves simultaneously
- E. None of the above Discuss
- 8. The amount of uncertainty in a system of symbol is called
Options- A. Bandwidth
- B. Entropy
- C. loss
- D. Quantum
- E. None of the above Discuss
- 9. Which of the following digits are known as the area code of the Network User Address (NUA)?
Options- A. 5-7
- B. 1-4
- C. 8-12
- D. 13-14
- E. None of the above Discuss
- 10. In CRC there is no error if the remainder at the receiver is _____.
Options- A. the quotient at the sender
- B. nonzero
- C. zero
- D. equal to the remainder at the sender
- E. None of the above. Discuss
Networking problems
Search Results
Correct Answer: A physical address that is assigned by the manufacturer
Correct Answer: is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
Correct Answer: Bus
Correct Answer: DTE/DCE interface
Correct Answer: Checksum
Correct Answer: TCP/IP
Correct Answer: remains in a fixed position so that as earth rotates, it can fully cover the earth
Correct Answer: Entropy
Correct Answer: 5-7
Correct Answer: the quotient at the sender
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